QNAP USB 2.0 2-Bay Viostor 8-Channel Network Video Recorder VS-2008L Marvell 1.2GHz CPU and 256MB DDRII RAM. 2.5 or 3.5 inch SATA hot-swappable HDDs 1 Gigabit LAN port also equipped with 2 USB ports for storage expansion or external data backup Maximum network throughput 28 Mbps Power-saving design Consumes only 13 W Cascade to other QNAP NVR servers to support up to 128 IP cameras CPU: Marvell 6281 1.2GHz DRAM: 256MB DDRII RAM Flash Memory: 16MB Hard Disk Drive: 2 x 3.5" SATA I/II hard disk drive (HDD) LAN Port : 1 x Gigabit RJ-45 Ethernet port Form Factor: Portable Power: External Power Adapter, 60W, 100-240V Fan: 1 x quiet cooling fan (6cm, 12V DC)